Hello Dear Thanks for your query, I will provide you with my best possible advice. First of all on the basis of only bad breath and white coating over tongue we cant say that its periodontitis (pyorrhea). Bad breath may be an associaed symptom of periodontitis. Bad breath or halitosis can occur due to several cause like more commonly from periodontitis, smoking, poor oral hygiene, alcohol consumption, and less commonly from gastric upset, foods like onion and garlic etc. As in your case you told that after taking unienzyme tablet, you get relieved. At one end it is looking like gastric upset is causing the problem but at the other end it seems that peridontitis is causing bad breath to you because recently a homeopath doctor has diagnosed it as periodontitis. • So in my opinion, it will be best to visit the dentist to have proper diagnosis and traeatment because if the problem is due to the periodontitis, you have to undergo complete treatment to solve the problem. Hope this will help you. If there is any more query or question regarding this in your mind, you are free to ask any time. Thank You and Take Care Regards